Synthesis of CdS quantum dots by mechanochemical reaction

被引：78

作者：

Tsuzuki, T ^{[1
]}

McCormick, PG ^{[1
]}

机构：

[1] Univ Western Australia, Special Res Ctr Adv Mineral & Mat Proc, Perth, WA 6907, Australia

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 1997年 / 65卷 / 06期

关键词：

D O I：

10.1007/s003390050629

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The synthesis of ultrafine cadmium sulphide quantum dots by mechanochemical reaction has been studied using X-ray diffraction, transmission electron microscopy and UV-VIS absorption spectroscopy. The solid-state displacement reaction of CdCl2 + Na2S --> CdS + 2NaCl induced by mechanical milling resulted in the formation of CdS particles with an average diameter of < 8 nm. The average particle size was controlled within the range of 4 to 8 nm by varying the size of the grinding media. The onset energy of optical absorption showed a blue shift with decreasing particle size.

引用

页码：607 / 609

页数：3

共 22 条

[1]

BANYAI L, 1993, SEMICONDUCTOR QUANTU

[2] THE QUANTUM-MECHANICS OF LARGER SEMICONDUCTOR CLUSTERS (QUANTUM DOTS) [J].

BAWENDI, MG ;

STEIGERWALD, ML ;

BRUS, LE .

ANNUAL REVIEW OF PHYSICAL CHEMISTRY, 1990, 41 :477-496

[3] ELECTRONIC WAVE-FUNCTIONS IN SEMICONDUCTOR CLUSTERS - EXPERIMENT AND THEORY [J].

BRUS, L .

JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (12) :2555-2560

[4] ULTRAVIOLET REFLECTION SPECTRUM OF CUBIC CDS [J].

CARDONA, M ;

WEINSTEIN, M ;

WOLFF, GA .

PHYSICAL REVIEW, 1965, 140 (2A) :A633-+

[5]

Cullity BD., 1978, ELEMENTS XRAY DIFFRA, V2

[6] Mechanochemical synthesis of ultrafine Fe powder [J].

Ding, J ;

Miao, WF ;

McCormick, PG ;

Street, R .

APPLIED PHYSICS LETTERS, 1995, 67 (25) :3804-3806

[7] Ultrafine Co and Ni particles prepared by mechanochemical processing [J].

Ding, J ;

Tsuzuki, T ;

McCormick, PG ;

Street, R .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1996, 29 (09) :2365-2369

[8] Ultrafine alumina particles prepared by mechanochemical/thermal processing [J].

Ding, J ;

Tsuzuki, T ;

McCormick, PG .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1996, 79 (11) :2956-2958

[9] Ultrafine Cu particles prepared by mechanochemical process [J].

Ding, J ;

Tsuzuki, T ;

McCormick, PG ;

Street, R .

JOURNAL OF ALLOYS AND COMPOUNDS, 1996, 234 (02) :L1-L3

[10]

DING J, 1996, SYNTHESIS PROCESSING, P76

← 1 2 3 →